It was too good to be true. Prozac, the wonderdrug hailed as the answer to the war against depression and taken by some 37 million people worldwide, is not as harmless as we've been led to believe. Disturbing evidence has now emerged, showing that, after the initial relief and euphoria of the first dose, Prozac can push some patients into so agitated a state of mind that they are a danger not only to themselves, but to others, too. By Sarah Boseley

The number of Jews in Britain is declining because the traditional community chooses to define those who 'marry out', or who are not practising, as non-Jews (The Few, October 23). Unless they recognise that secular Jews are as much part of the Jewish 'story' as they are, the chances of there being Jewish grand- children in future are increasingly slim. Rachel Oelman
London N15